Joan Adon DFA'd to make room on the 40-man roster.
already something good coming out of this signing.
I agree Tena will get a long look at 3rd and that Rosario comes in as a plan B in case Tena still can't field the position. Both can be pushed aside if House or Wallace or even Morales look ready. Rosario has been almost exclusively a SS in his career.
As for the bench, I think this kind of kills off Baker, Lipscomb, and Nunez's chances at the start of the year. Figure 1 OF (Call or Garrett), 1 Catcher (Millas or more likely Adams), Rosario (or Tena), and one righty bench bat among Chappy, Yepez, or Garrett.